Variant 13-46834914-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The ENST00000542664.4(HTR2A):c.1339G>A(p.Ala447Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000824 in 1,614,090 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A447V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000088 ( 0 hom. )

Consequence

HTR2A
ENST00000542664.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.242

Variant links:

Genes affected

HTR2A (HGNC:5293): (5-hydroxytryptamine receptor 2A) This gene encodes one of the receptors for serotonin, a neurotransmitter with many roles. Mutations in this gene are associated with susceptibility to schizophrenia and obsessive-compulsive disorder, and are also associated with response to the antidepressant citalopram in patients with major depressive disorder (MDD). MDD patients who also have a mutation in intron 2 of this gene show a significantly reduced response to citalopram as this antidepressant downregulates expression of this gene. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

HTR2A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.018743813).

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
HTR2A	NM_000621.5 linkuse as main transcript	c.1339G>A	p.Ala447Thr	missense_variant	4/4	ENST00000542664.4	NP_000612.1
HTR2A	NM_001378924.1 linkuse as main transcript	c.1339G>A	p.Ala447Thr	missense_variant	4/4		NP_001365853.1
HTR2A	NM_001165947.5 linkuse as main transcript	c.850G>A	p.Ala284Thr	missense_variant	3/3		NP_001159419.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HTR2A	ENST00000542664.4 linkuse as main transcript	c.1339G>A	p.Ala447Thr	missense_variant	4/4	1	NM_000621.5	ENSP00000437737	P1	P28223-1
HTR2A	ENST00000543956.5 linkuse as main transcript	c.850G>A	p.Ala284Thr	missense_variant	3/3	1		ENSP00000441861

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000916

AC:

AN:

251116

Hom.:

AF XY:

0.000111

AC XY:

AN XY:

135712

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.000695

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000115

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000876

AC:

128

AN:

1461758

Hom.:

Cov.:

AF XY:

0.0000880

AC XY:

AN XY:

727182

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.000689

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000710

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152332

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000161

Hom.:

Bravo

AF:

0.0000831

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 26, 2022

The c.1339G>A (p.A447T) alteration is located in exon 4 (coding exon 3) of the HTR2A gene. This alteration results from a G to A substitution at nucleotide position 1339, causing the alanine (A) at amino acid position 447 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.65

CADD

Benign

5.9

DANN

Benign

0.59

DEOGEN2

Benign

0.059

T;T;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.052

LIST_S2

Benign

0.70

.;T;T

M_CAP

Benign

0.0049

MetaRNN

Benign

0.019

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.81

N;N;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

0.12

N;N;N

REVEL

Benign

0.077

Sift

Benign

0.64

T;T;T

Sift4G

Benign

0.59

T;T;T

Polyphen

0.0

B;B;.

Vest4

0.033

MVP

0.31

MPC

0.26

ClinPred

0.011

GERP RS

0.22

Varity_R

0.031

gMVP

0.27

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over